When evaluating new technology in helicopter emergency medical services (HEMS), economic evaluation is normally part of the assessment. The outcome of economic evaluation may provide fruitful insight for the decision-makers, but, due to the complexity of the HEMS system, it is challenging to perform such evaluations in this context. A change in the components affects the whole system, and a lack of consideration of system components and their interactions may lead to unintended economic consequences when implementing new technology. Ultimately, this may cause a negative contribution to overall patient safety. We propose a conceptual methodology, using a systems model as part of the economic evaluation. The article is a revised and expanded version of a conference article presented at ESREL 2017, Slovenia.
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Sørskår et al. (2018) studied this question.